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    当前位置:首页>新闻资讯>新闻动态>齿轮加工和啮合相结合产生的冲击力

    齿轮加工和啮合相结合产生的冲击力

    来源:http://www.jnzkjx.cn/ 日期:2020-07-02 发布人:kaizejixie
    一对齿轮加工完成时,齿轮在啮合过程中,由于轮齿受力后必将产生一定程度的弹性变形,故每当一只轮齿啮合上时,原来啮合的轮齿的载荷就会相对减少。
    When a pair of gears are finished, the gear teeth will produce a certain degree of elastic deformation during the meshing process. Therefore, when a tooth is meshed, the load of the original meshed teeth will be relatively reduced.
    它们就会立即向着载荷位置恢复变形,从而给齿轮体一个切向加速度,再加上原有啮合轮齿在受载下的弯曲变形和齿轮制造误差,使轮齿从啮入到啮出的整个过程中不能得到理论齿廓的平滑接触而发生碰撞,形成所谓的啮合冲击力,齿轮在这种激励作用下,也将激发起齿轮的圆周振动,径向振动,轴向振动,从而产生出噪声并通过空气及固体媒介传播出去。
    They will immediately recover the deformation towards the load position, thus giving the gear body a tangential acceleration, plus the bending deformation of the original meshing teeth under load and the gear manufacturing error, so that the gear teeth can not get the smooth contact of the theoretical tooth profile during the whole process from meshing in to meshing out, resulting in the so-called meshing impact force. Under this excitation, the gear will also be excited Start the circular vibration, radial vibration and axial vibration of the gear, so as to generate noise and spread out through air and solid media.
    因而齿轮啮合过程中所产生的接线冲击力和啮合冲击力使一对传动齿轮产生的振动,称为辐射出噪声的主要原因。
    Therefore, the vibration of a pair of transmission gears caused by the connection impact force and meshing impact force in the process of gear meshing is called the main reason of radiated noise.
    在描述产生齿轮振动和噪声的机理时,可以把齿轮视为一个弹簧-质量块振动系统,把轮齿视为弹簧,而把齿轮提当作质量,节线冲击力和啮合冲击力可视为外力,从而导致齿轮产生圆周方向的振动,又通过轴系,轴承诱使齿轮产生径向和轴向振动。
    When describing the mechanism of gear vibration and noise, the gear can be regarded as a spring mass vibration system, the gear tooth can be regarded as a spring, and the gear can be regarded as a mass, the pitch line impact force and meshing impact force can be regarded as external forces, which will cause the gear to produce circumferential vibration, and induce the gear to produce radial and axial vibration through the shaft system and bearing.
    这三个方向的振动通过轴,轴承及轴承座传至齿轮箱,引起箱壁振动,甚至诱发整个装置产生振动,辐射到空气中成为齿轮箱噪声。
    The vibration in these three directions is transmitted to the gearbox through the shaft, bearing and bearing pedestal, which causes the vibration of the box wall, and even induces the vibration of the whole device, which radiates into the air and becomes the gearbox noise.